<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // var time = new Date();
        // console.log(time.getMonth());

    //   console.log(  new Date(2021,11,8).getMonth() );
    var arr =  ["123",123];
    console.log(typeof typeof arr[1]); 

    </script>
</body>
</html>